What is a Twin Screw Pump?
A Twin Screw Pump is a rotary positive displacement pump that has 2 screws. The Twin Screw Pump supplied by Tapflo UK, has a sanitary design, EHEDG (European Hygienic Engineering and Design Group) rated. Ideal for all sanitary applications, the pump applies a combination of the advantages of a Lobe, Peristaltic, Centrifugal and Piston Pumps. The combination of these pumps has resulted in a robust pump that is incredibly versatile for a variety of applications.
How does a Twin Screw Pump work?
A Twin Screw Pump can be supplied in various designs with a different number of screws. At Tapflo we focus on the Twin Screw Pump which utilises 2 large screws that counter-rotate. The screws do not touch, rotating within the pump casing to create a positive displacement force. The volume between the screws increases as they rotate and pass the suction port. This creates a vacuum that draws liquid into the suction port and the pump housing. As they continue to rotate past the discharge port, the volume between the screws decreases, causing pressure to build up which then forces the liquid out of the discharge port.
What are the benefits of using a Twin Screw Pump?
The Twin Screw Pump is very versatile, it can be supplied with a flush mechanical seal, a double mechanical seal, trolley mounted and with a higher grade of finish (up to 0.5 Ra).
Other benefits include:
- Self-priming capabilities up to 8m
- Ability to dry run
- The screw design allows for solids up to a maximum of 40ml to be pumped
- Steady flow
- High head
- High flow
- High temperature, up to 140 degrees
What applications are Twin Screw Pumps ideal for?
Twin Screw Pumps are perfect for viscous and shear sensitive products and are ideal for the following applications:
- Loading, unloading
- CIP & SIP
…and many more!